Alert archive / New Hampshire / 2025
Weather alerts in New Hampshire, August 2025
20 weather alerts in August 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in August 2025. Tap one for its archive.
- Alerts
- 20
- Warnings
- 10
- Watches
- 0
- Advisories
- 5
- Busiest day
- August 13, 20258 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 5:47 PM EDT | Areal Flood Advisory | GYX | Sullivan | 69 min |
| Aug 5, 6:22 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Sullivan | 38 min |
| Aug 8, 8:10 PM EDT | Flash Flood Warning | GYX | Coos | 2 hr |
| Aug 10, 1:22 PM EDT | Heat Advisory | GYX | Hillsborough, Rockingham, Strafford | 3 days |
| Aug 13, 12:42 PM EDT | Mesoscale Discussion | SPC | Belknap, Cheshire, Hillsborough, Merrimack, Sullivan | 2 hr |
| Aug 13, 4:43 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough | 47 min |
| Aug 13, 5:02 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Merrimack, Rockingham | 43 min |
| Aug 13, 5:04 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Rockingham | 41 min |
| Aug 13, 5:45 PM EDT | Severe Thunderstorm Warning | GYX | Hillsborough, Merrimack, Rockingham | 45 min |
| Aug 13, 5:53 PM EDT | Severe Thunderstorm Warning | GYX | Cheshire, Hillsborough | 34 min |
| Aug 13, 5:54 PM EDT | Severe Thunderstorm Warning | GYX | Merrimack, Rockingham, Strafford | 36 min |
| Aug 13, 7:09 PM EDT | Flash Flood Warning | GYX | Hillsborough, Rockingham | 3 hr |
| Aug 14, 4:44 PM EDT | Severe Thunderstorm Warning | GYX | Rockingham | 34 min |
| Aug 17, 1:41 PM EDT | Mesoscale Discussion | SPC | Belknap, Carroll, Cheshire, Grafton, Hillsborough, Merrimack and 3 more | 2 hr |
| Aug 20, 1:51 PM EDT | Rip Current Statement | GYX | Rockingham | 30 hr |
| Aug 20, 1:51 PM EDT | High Surf Advisory | GYX | Rockingham | 3 days |
| Aug 21, 1:27 PM EDT | Coastal Flood Advisory | GYX | Rockingham | 36 hr |
| Aug 23, 7:58 PM EDT | High Surf Advisory | GYX | Rockingham | 24 hr |
| Aug 27, 1:57 PM EDT | Special Weather Statement | GYX | Hillsborough | 33 min |
| Aug 27, 2:59 PM EDT | Special Weather Statement | GYX | Strafford | 31 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 8 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 1 |
| Heat | |
| Heat Advisory | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| High Surf Advisory | 2 |
| Rip Current Statement | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20242026
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.